JPS6337062Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a dust collector that collects dust by discharging air introduced for dust collection through two upper and lower filters.

(Prior Art) Conventionally, some dust collectors used for collecting dust in woodworking and the like have two filters, an upper and a lower filter.

This has an external motor and blades that introduce the air to be collected, and the air is sent through the rotation of the blades into the main body of the dust collector, which has filters on the top and bottom, and is discharged through the upper and lower filters to collect the dust. It is something to do.

(Problems to be solved by the invention) Even with such conventional technology, it can serve the purpose of a dust collector, but due to its configuration, the main body of the dust collector and the blower such as a motor are separated. Because of this configuration, the air blowing noise from the motor and blades is large, and the blower has a large and protruding structure, which requires a large installation area.Furthermore, the dust collector is heavy, so it cannot be easily moved. There were some problems, such as not being able to do it.

(Means for Solving the Problems) In order to solve these problems, according to this invention, the lower filter 9a and the upper filter 9b
a hollow-shaped main body 1 to which is detachably attached;
A motor chamber 5 is arranged such that a hollow section 7 is formed inside the main body 1 and the lower filter 9a and the upper filter 9b communicate with each other. Motor room 5
A motor 3 is installed so that its drive shaft 14 protrudes downward, a blade 4 is attached to the drive shaft 14 of the motor 3, and an external collector is installed between the blade 4 and the motor 3. A dust collector is provided, which is characterized in that it comprises a suction hole 2 for introducing air to be dusted.

In the above configuration, the upper part of the motor chamber 5 can have a conical shape.

In this case, the dust collected by the upper filter 9b is more likely to fall downward.

Further, in the above configuration, the main body 1 can be made movable by attaching casters or the like.

(effect) The above technical means works as follows.

The motor 3 housed in the motor chamber 5 is driven by an external arbitrary operation, and the heat generated by driving the motor 3 is released to the outside through a communication pipe 6 that communicates the interior of the motor chamber 5 with the outside.

When the blade 4 is rotated by the drive of the motor 3, the air to be collected is drawn from the suction hole 2 by the motor 3.
The air is introduced from between the air and the blades 4 and is blown downward and to the sides (back air blowing type).

The blown air to be collected is discharged from the lower filter 9a, and is also sent upward through the hollow part 7 formed around the motor chamber 5 and discharged from the upper filter 9b. Ru.

The lower filter 9a mainly filters heavy dust and stores the collected dust as it is, while the upper filter 9b mainly filters light dust and collects the collected dust as soon as the operation is stopped. By falling through the hollow part 7, it is stored in the lower filter 9a.

At this time, the cover 8, which is arranged so as to be inclined at the upper part of the motor chamber 5, acts to smoothly drop the dust collected by the upper filter 9b.

The lower filter 9a is detachable by means of a mounting band 10, so that the collected dust can be removed at will.

(Embodiment) An embodiment of this invention will be described with reference to the drawings. Reference numeral 1 is a cylindrical main body 1, and the main body 1 has bag-shaped lower filters 9a which can be attached and detached by attachment bands 10 on the upper and lower sides of the main body 1, respectively. and an upper filter 9b are attached.

Reference numeral 5 denotes a motor chamber disposed at the center of the interior of the main body 1, and the motor chamber 5 has a conical cover 8 with an inclined upper part. A communication pipe 6 is disposed, and the motor chamber 5 is provided with the two filters 9a and 9b between its outer periphery and the inner periphery of the main body 1.
It is attached so that a hollow part 7 is formed in which the parts communicate with each other.

Reference numeral 3 denotes a motor housed in the motor chamber 5, and the motor 3 is mounted so that its drive shaft 14 projects downward toward the outside.

4 is a blade attached to the drive shaft 14, 2 is a suction hole provided between the blade 4 and the motor 3, and 12 is a suction hole 2 through which air to be collected at a desired location is drawn. It is a dust collection duct that guides the air.

Reference numeral 11 denotes a blade case attached to the motor chamber 5. The blade case 11 rectifies the air to be collected that is introduced by the rotation of the blade 4, and directs the air from a part of its outer periphery through the hollow part 7. upper and lower filters 9b,
9a.

13 is a leg attached to the main body 1.

(Effects of the invention) As explained above, the present invention has an integrated structure with a motor, blades, etc. inside the main body.
It is possible to reduce the noise from the motor leaking to the outside, and it can be made compact without unnecessary extensions, and there is no need for ducts, etc. that connect the blower and the dust collector body, which were required in the past. Because of this, the structure can be simplified and provided at low cost.

In addition, since the air to be collected is introduced directly between the motor and the blades (rear air blowing type), air blowing resistance is reduced compared to conventional methods, and vibrations of the motor etc. are reduced. By being directly transmitted to the filter, clogging of the filter can be prevented, and dust collection efficiency can be improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the dust collector according to this invention, and FIG. 1 is a longitudinal cross-sectional view of a main part, and FIG. 2 is a cross-sectional view taken along the line A--A in FIG. 1. In the drawing, 1 is the main body, 2 is the suction hole, 3 is the motor, 4 is the blade, 5 is the motor chamber, 6 is the communication pipe, and 7
is the hollow part, 8 is the cover, 9a is the lower filter, 9
b is an upper filter, 10 is a mounting band, 11 is a blade case, 12 is a dust collection duct, 13 is a leg, and 14 is a drive shaft.

Claims (1)

[Scope of utility model registration request] A hollow main body 1 to which a lower filter 9a and an upper filter 9b are detachably attached;
The lower filter 9a and upper filter 9 are installed inside the
A motor chamber 5 is arranged so as to form a hollow portion 7 that communicates with the outside, and the upper portion of the motor chamber 5 communicates with the outside. A motor 3 installed as shown in FIG. A dust collector characterized by comprising: